<div dir="auto"><div><br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">ср, 8 февр. 2023 г., 16:52 Terje J. Hanssen <<a href="mailto:terjejhanssen@gmail.com">terjejhanssen@gmail.com</a>>:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div>Den 08.02.2023 03:46, skrev Andrew
Randrianasulu:<br>
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<div dir="auto"><a href="https://www.avaccess.com/products/4kvc00/" target="_blank" rel="noreferrer">https://www.avaccess.com/products/4kvc00/</a>
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<div dir="auto">it exist, just not (yet?) in Europe ...</div>
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4KVC00, interesting model worth to have a closer look at. And it
seemingly is available or at least prices in Europe for €71.99<br>
<a href="https://www.avaccess.com/eu/products/4kvc00/" target="_blank" rel="noreferrer">https://www.avaccess.com/eu/products/4kvc00/</a><br>
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If it has better cost/performance than other similar UVC v4L2
models, I don't know.<br>
Looking at its tech specs, it has color precision <br>
Deep Color 4K@60Hz: Up to 8bit <br>
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Not really fair comparable with the "not so unexpensive" standalone
SSD recorder (BMD Hyperdeck Shuttle 2<br>
<a href="https://www.bhphotovideo.com/c/product/841023-REG/Blackmagic_Design_HYPERD_PT2_HyperDeck_Shuttle_2_SSD.html/specs" target="_blank" rel="noreferrer">https://www.bhphotovideo.com/c/product/841023-REG/Blackmagic_Design_HYPERD_PT2_HyperDeck_Shuttle_2_SSD.html/specs</a><br>
Color Precision 10-bit<br>
Video Sampling 4:2:2<br>
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And not to forget the 8-Bit vs 10-Bit Video Color Explained
(thousands/banding vs millions):<br>
<a href="https://fujifilm-x.com/en-us/series/the-filmmakers-handbook/8-bit-or-10-bit-video-color-explained/" target="_blank" rel="noreferrer">https://fujifilm-x.com/en-us/series/the-filmmakers-handbook/8-bit-or-10-bit-video-color-explained/</a><br>
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</div></blockquote></div></div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto">yeah, with 19x diff in price you left to wonder if 10bit video path just *that* much expensive, or they charge because they can ....</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto">a bit of a look inside some of those devices, not really open down to fpga (?), but still you can look at firmware ...</div><div dir="auto"><br></div><div dir="auto"><a href="https://hackaday.com/2022/10/14/an-open-source-hdmi-capture-card/">https://hackaday.com/2022/10/14/an-open-source-hdmi-capture-card/</a><br></div><div dir="auto"><br></div><div dir="auto">look at github link from there, it definitely list usb 3.0 yuv at usable framerates, but for usb 2.0 this slows down to exactly 5/10 fps ...</div><div dir="auto"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><br>
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<div dir="ltr" class="gmail_attr">ср, 8 февр. 2023 г., 05:19
Andrew Randrianasulu <<a href="mailto:randrianasulu@gmail.com" target="_blank" rel="noreferrer">randrianasulu@gmail.com</a>>:<br>
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<div dir="auto"><a href="https://www.amazon.com/gp/aw/d/B08MPPKZ55/ref=cm_cr_srp_mb_bdcrb_top?ie=UTF8" rel="noreferrer noreferrer noreferrer noreferrer
noreferrer noreferrer" target="_blank">https://www.amazon.com/gp/aw/d/B08MPPKZ55/ref=cm_cr_srp_mb_bdcrb_top?ie=UTF8</a>
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<div dir="auto">4KVC00 from "V AV access"<br>
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<div dir="auto">in reviews</div>
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<div dir="auto"> A true YUY2, USB 3.0 capture card capable
of 1080p 60fps!
<div dir="auto">Reviewed in the United States on June 7,
2021</div>
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For the price, this thing is awesome. It's actually
USB 3.0 (instead of just a fake blue connector) and is
capable of delivering raw 1080p60 video for capture!
I've been looking around for a good 1080p60 capture
card for my Nintendo Switch, and this fits the bill
quite nicely, as the loop-out keeps the gaming
'competitive' while the capture looks great.<br>
<br>
Pros:<br>
- Really captures at 1080p 60fps, and delivers sharp
images (instead of blurrier 30fps ones you'll find on
cheap USB 2.0 MJPEG-based capture cards). YUY2 (the
video format) is chroma subsampled though, which means
that really small text may have a bit of
discoloration, but for games it's not really an issue.<br>
- Low latency capture (at least from what I can tell
in OBS preview)<br>
- Loop out (yay)<br>
- Works with Linux as a simple V4L2 capture device<br>
- Sound is nicely in sync<br>
- Price (I got it for like ~$40 or so, and haven't
found anything this good at this price point - heck,
it outclasses my AverMedia Live Gamer Mini I bought
used at $60)<br>
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<div dir="auto">aja and other stuff cost ... *much*
more.</div>
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<div dir="auto"><a href="https://www.aja.com/products/u-tap-hdmi" rel="noreferrer noreferrer noreferrer" target="_blank">https://www.aja.com/products/u-tap-hdmi</a><br>
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<div dir="auto">439$</div>
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<div dir="auto"><a href="https://www.amx.com/en/products/uvc1-4k" rel="noreferrer noreferrer" target="_blank">https://www.amx.com/en/products/uvc1-4k</a><br>
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<div dir="auto">even costlier, 800+!</div>
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<div dir="auto">Anyway, in all cases cable (usb) might
be limiting factor, too?</div>
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<div dir="auto">I really hope this HAMA device actually
just was plugged in wrong port or via wrong cable,
otherwise I think it will be wise to replace it with
something else (sadly cheap-end devices may change
their guts without changing appearance, so ...russian
roulette!)</div>
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